1. to praise someone excessively or insincerely, especially to gain favor or advantage
2. to make someone or something appear more attractive or favorable than reality
3. to please or gratify someone’s vanity or ego

1. having a smoother, more level surface; comparative form of flat

Examples

• She tried to flatter her boss by complimenting his presentation skills.
• Don’t flatter yourself into thinking you’re irreplaceable.
• The soft lighting flattered her complexion beautifully.
• His friends flatter him constantly, which has made him quite arrogant.
• That dress really flatters your figure.
• The new road surface is much flatter than the old one.
• I was flattered by the invitation to speak at the conference.